Title :
Behaviour of MPPF capacitors under transient over voltages
Author :
Usa, S. ; Udayakumar, K.
Abstract :
Extensively metalized polypropylene films are used in high voltage and low voltage capacitors. The reliability of the capacitors are tested as per standard test procedures. The capacitance and partial discharges are the important parameters to estimate the life of the capacitors. Failures in capacitors can be due to transient over voltages and partial discharges. An attempt has been made to study the effect of impulse voltages with different magnitudes and repetition rates on the characteristics of MPPF capacitors. An alternate method of ageing using impulse voltages on capacitors is proposed.
Keywords :
ageing; insulation testing; life testing; polyethylene insulation; polymer films; power capacitors; reliability; surges; thin film capacitors; MPPF capacitors; PDIV; ageing; capacitors failures; capacitors life estimation; capacitors reliability; impulse voltages; metalized polypropylene films; partial discharge inception voltage; standard test procedures; surge rate; transient over voltages; Aging; Breakdown voltage; Capacitance; Capacitors; Impulse testing; Low voltage; Manufacturing; Partial discharges; Surges; Voltage control;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193570
